किस समीकरण के मूल (5) और (-3) हैं?
Which equation has roots (5) and (-3)?
Explanation opens after your attempt
Correct Answer
A. \(x^2-2x-15=0\)
Concept
With roots (5) and (-3), we get ((x-5)(x+3)=0). Expanding it gives \(x^2-2x-15=0\).
Why this answer is correct
The correct answer is A. \(x^2-2x-15=0\). With roots (5) and (-3), we get ((x-5)(x+3)=0). Expanding it gives \(x^2-2x-15=0\).
Exam Tip
मूल (5) और (-3) होने पर ((x-5)(x+3)=0) होगा। इसे खोलने पर \(x^2-2x-15=0\) मिलता है।
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